The Study of Experiment on Tropospheric Scatter Propagation at C-band

Dual Data Streaming on Tropospheric Communication Links Based on the Determination of Beam Pointing Dynamics Using a Modified Ray-Based Channel Model

“…The Technical Note no. 101 [16], issued by the National Bureau of Standards (NBS) in 1965, gave the first prediction model, which became the basis for various recommendations of the radiocommunication sector of the International Telecommunication Union (ITU-R), such as ITU-R P.452-17 [17], ITU-R P.617-5 [9], and ITU-R P.2001-4 [18]. The model given in [18] is the most wide-ranging model, which calculates the transmission loss as per the climatic zone to which the link belongs.…”

“…Hence, propagation losses due to slow fading are considered inevitable in existing tropo systems and catered for in the link budget. However, in recent years, the possibility of tropo systems capable of operating in the C band [9] and Ku band [10] has been explored, which could result in small-sized, lightweight antennas. Tropo systems with phased-array antennas that are capable of electronic beam forming have been suggested by Winters et al [11,12], which could also be used for beam steering.…”

Мобільна Вузлова Цифрова Тропосферна Станція

“…Антенні системи для тропосферних систем зв'язку досліджено в роботах [8−10]. Методи моделювання тропосферних каналів зв'язку наведені в роботах [11−14], при цьому, в Ku-діапазоні -в роботах [15; 16] та в С-діапазоні -в роботі [17]. Використання технологій для боротьби з завмираннями [18; 19] та ефективної обробки сигналу описані в роботах: по використанню SDRтехнології [20], розширенню спектра сигналу [21], використанню псевдовипадкового переналаштування частоти [22].…”